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Summary: TOWARDS A MEASURE OF BIOMETRIC INFORMATION
Andy Adler
University of Ottawa,
Ontario, Canada
adler@site.uottawa.ca
Richard Youmaran
University of Ottawa,
Ontario, Canada
youmaran@site.uottawa.ca
Sergey Loyka
University of Ottawa,
Ontario, Canada
sloyka@site.uottawa.ca
Abstract
This paper addresses the issue of the information content of a biomet-
ric image or system. We define biometric information as the decrease
in uncertainty about the identity of a person due to a set of biometric
measurements. We then show that the biometric information for a
person may be calculated by the relative entropy D(p q) between the
population feature distribution q and the person's feature distribution
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